A mobile app that combines fitness and social networking, Runtastic guides users through workouts and charts progress. Users can track distance, time, pace and calorie consumption. It is available in 18 languages.
Users also can set up training logs, which they can share online, get data analysis, and compare data with friends or other users. The app, which was created by developers in Austria in 2009, has had more than 60 million downloads and is compatible with iPhone, Android, Windows Phone, BlackBerry and now Google Glass.